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Question
All of the following enzymes are negatively regulated (allosterically inhibited) by increasing levels of ATP EXCEPT _____.a. phosphofructokinase
b. pyruvate dehydrogenase complex
c. hexokinase
d. citrate synthase
Answer
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Related questions
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Describe the process by which vitamin B12 is digested and absorbed.
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For each vitamin listed below, indicate: (1) the active form of the vitamin, (2) the general function for the vitamin, and (3) an example of the general function (this could be a specific reaction or simply indicate a pathway/ process where it occurs). An example is provided; as you can see, your answers do not need to be long!Vitamins: Biotin, pantothenate, riboflavin, vitamin B6, thiamin, vitamin C, folateExample: Niacin(1) NAD(H) or NADP(H)(2) Oxidation-reduction reactions(3) TCA Cycle reaction or"¦.
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Indicate whether the statement is true or false. If the statement is false, explain why it is false.
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Indicate whether the statement is true or false. If the statement is false, explain why it is false.
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Which of the following vitamins has a Tolerable Upper Intake Level established?
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c. vitamin B6
d. vitamin B12
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The normal digestion and absorption of cobalamin requires adequate protein digestion in the stomach; the presence of 2 nonenzymatic proteins: _____; and a receptor located in the _____.
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Q:
What amount of supplemental folic acid is recommended daily for women of childbearing age in the United States?
a. 200 ug DFE
b. 400 ug DFE
c. 600 ug DFE
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Tetrahydrofolate is vitally important for dividing cells during growth and cancer and knowledge of this need is used in cancer treatment by giving the drug methotrexate to inhibit the enzyme _____.
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Synthesis of coenzyme A starts with the phosphorylation of which vitamin?
a. pyridoxal phosphate
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c. vitamin E
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Erythrocyte transketolase activity is an assay to assess the status of:
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Describe how the effects of anorexia nervosa are similar to the effects of starvation.
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The present diet of the student in question #25 provides 2500 kcal per day. This diet:
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b. needs to be increased by 300 kcal.
c. would cause about 1 lb per week weight loss.
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Explain the physiological role of silicon in normal growth and bone development.
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Which ultratrace element is not required by humans in its ionic form, but is a necessary component of the coenzyme form of a vitamin?
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b. boron
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Toxicity of which element results in green tongue, diarrhea, and GI cramps?
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Which ultratrace element, in pharmacological quantities, mimics the action of insulin?
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Which ultratrace element affects the composition, structure, and strength of bones as well as cell membrane stability and inflammation?
a. vanadium
b. cobalt
c. arsenic
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Which of the following groups of foods are richest in boron, providing 1.0 to 4.5 mg/100 g?
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b. pork, beef, and poultry
c. milk , butter, cheese, and yogurt
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What two minerals can cause damage to cells when in their free ion forms?
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b. zinc and molybdenum
c. iodine and manganese
d. zinc and copper
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